Hi again Andrew, thanks for your swift response.
I am sure that it is part of a 'healing crisis' that I am experiencing, just didn't expect it to last as long (or be as painful)
I have taken everything on board that you say regarding the oedema. Whilst my feet and ankles had sometimes swollen pre IBT this had been resolved so it was quite a surprise to see that they are once again swollen subsequent to IBT. I can't quite work that one out, although it does seem to go 'hand in hand' with back pain with me? They are still swollen this morning, just slightly less so.
I have been reluctant to take any painkillers, but tried Prescription strength Voltarol (Diclofenac) at the weekend, I won't be taking any more.
At the risk of sounding a complete wreck

The back problems (medical terms) that I have are left sacroiliac dysfunction, which started after the birth of my boy 32 years ago and has never managed to resolve effectively (Physio didn't help, Chiropractic didn't help and I have refused corticosteroid injections and Diazepam) A slight scoliosis at L3, and Osteoarthritis at L4/L5, oh, and restless leg syndrome.
My difficulty on rising or transferring currently means that a sudden back spasm effectively cuts my legs from beneath me, and makes it impossible for me to get up again without outside assistance
I spend my days in an electric wheelchair, but am very mindful to have my bottom higher than my knees, in fact I never use the footplates (much to the OT's horror) because I can and do still stand and transfer quite well, so it is much more convenient for me to use that way. I remain much more 'active' doing that so I believe it can only be a good thing?
I try and use a vibe-trainer for 5 minutes daily to keep the strength at least going in my legs.
I only take supplements, no prescription drugs and am wholly convinced that ultimately I am trying to correct many years of sleeping incorrectly, and I'm not about to give up now, although I might just try reducing the height by 1" tonight and hopefully wait for my back condition to at least stabilise.
Many thanks again for your thoughts Andrew, sorry for the epistle
Elaine